Construction method of pouring asphalt sidewalk structure with double-layer colored ceramsite on steel bridge deck

Abstract

The invention discloses a construction method of a pouring asphalt sidewalk structure with double-layer colored ceramsite on a steel bridge deck. The construction method comprises the following steps:(1) performing sandblasting and rust removal on a steel bridge deck slab; (2) sequentially applying an anti-corrosion layer and a waterproof layer on the steel bridge deck slab; (3) applying a lowerbonding layer on the steel bridge deck slab applied with the waterproof layer after the waterproof layer is solidified and then laying a pouring asphalt mixture layer; (4) spreading a first colored ceramsite layer on the pouring asphalt mixture layer, performing rolling after the spreading is completed and clearing ceramsite not embedded in the pouring asphalt mixture layer after cooling; (5) applying an upper bonding layer on the first colored ceramsite layer, then spreading a second colored ceramsite layer, and clearing ceramsite not embedded in the upper bonding layer after solidification so as to complete the paving of the construction method of the pouring asphalt sidewalk structure with the double-layer colored ceramsite on the steel bridge deck.

Description

technical field [0001] The invention relates to a road pavement structure, in particular to a construction method for a steel bridge deck pouring type asphalt double-layer colored ceramsite sidewalk structure. Background technique [0002] At present, there are three types of sidewalk pavement schemes: (1) rigid pavement: including reinforced concrete leveling layer laying bricks and cement concrete engraved anti-skid groove; (2) flexible pavement: including rubber board (prefabricated or cast-in-place), plastic board and Colored asphalt concrete pavement; (3) thin-layer pavement: composed of high-strength binder and anti-skid aggregate, the binder mainly includes acrylic resin, epoxy resin, polymer cement mortar and emulsified asphalt. The mechanical characteristics of the sidewalk on the steel bridge deck are: (1) the deformation, displacement, vibration and torsion of the long-span steel box girder bridge itself are relatively large; (2) seasonal temperature changes will ...

AI Technical Summary

Problems solved by technology

[0003] Nowadays, the commonly used sidewalk pavement schemes have the following disadvantages: (1) The rigid pavement is thin in thickness and poor in flexibility, which is easy to crack or break and cause steel plate corrosion, and it is easy to fall off when laying anti-skid tiles; (2) Rubber plates in flexible pavement It is easy to fall off due to insufficient adhesion; the surface of the plastic board is easily damaged and has poor durability; the cost of colored asphalt concrete pavement is high and the durability is poor; It is easy to cause diseases such as aggregate falling off due to insufficient cohesive force

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